Home / 2,128.19-2,936.68-1,183.83

Finding the Fourth Proportional to 2,128.19, 2,936.68 and 1,183.83

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Solution

The fourth proportional to 2,128.19, 2,936.68 and 1,183.83 is: 1,633.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.19 : 2,936.68 = 1,183.83 : x
  2. Step 2: Convert to fraction form
    2,128.19/2,936.68 = 1,183.83/x
  3. Step 3: Cross multiply
    2,128.19x = 2,936.68 × 1,183.83
  4. Step 4: Simplify right side
    2,128.19x = 3,476,523.97
  5. Step 5: Solve for x
    x = 3,476,523.97/2,128.19
  6. Step 6: Final answer
    x = 1,633.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.